DSP - "Digital Signal Processing" electronically removes all noise from the intercom system except your voice. This is a MUST have for vehicles without a windshield, headsets, V8 cars, or loud exhaust. Simple, one touch operation on the face of the intercom allows you to turn on DSP when you need it, and turn it off when you don't.

Bluetooth - Pair your Cell phone or Bluetooth capable music device player for wireless music and phone calls. Listen to your music without connecting any wires or have a cell phone conversation without ever connecting your phone to your intercom system. Great for hands free driving! Simple, one touch operation on the face of the intercom allows you to play or pause while music is playing, or answer incoming phone calls!